diff options
Diffstat (limited to 'decoder')
| -rw-r--r-- | decoder/cdec.cc | 6 | ||||
| -rw-r--r-- | decoder/viterbi.cc | 11 | ||||
| -rw-r--r-- | decoder/viterbi.h | 4 |
3 files changed, 13 insertions, 8 deletions
diff --git a/decoder/cdec.cc b/decoder/cdec.cc index 140fe8e4..54e24792 100644 --- a/decoder/cdec.cc +++ b/decoder/cdec.cc @@ -491,7 +491,7 @@ int main(int argc, char** argv) { } const bool show_tree_structure=conf.count("show_tree_structure"); const bool show_features=conf.count("show_features"); - forest_stats(forest," -LM forest",show_tree_structure,show_features); + forest_stats(forest," -LM forest",show_tree_structure,show_features,&feature_weights); if (conf.count("show_expected_length")) { const PRPair<double, double> res = Inside<PRPair<double, double>, @@ -519,7 +519,7 @@ int main(int argc, char** argv) { &prelm_forest); forest.swap(prelm_forest); forest.Reweight(prelm_feature_weights); - forest_stats(forest," prelm forest",show_tree_structure,show_features); + forest_stats(forest," prelm forest",show_tree_structure,show_features,&prelm_feature_weights); } maybe_prune(forest,conf,"prelm_beam_prune","prelm_density_prune","-LM",srclen); @@ -538,7 +538,7 @@ int main(int argc, char** argv) { &lm_forest); forest.swap(lm_forest); forest.Reweight(feature_weights); - forest_stats(forest," +LM forest",show_tree_structure,show_features); + forest_stats(forest," +LM forest",show_tree_structure,show_features,&feature_weights); } maybe_prune(forest,conf,"beam_prune","density_prune","+LM",srclen); diff --git a/decoder/viterbi.cc b/decoder/viterbi.cc index 6a7a970b..ea0cd95e 100644 --- a/decoder/viterbi.cc +++ b/decoder/viterbi.cc @@ -116,15 +116,20 @@ inline bool close_enough(double a,double b,double epsilon) return diff<=epsilon*fabs(a) || diff<=epsilon*fabs(b); } -FeatureVector ViterbiFeatures(Hypergraph const& hg,FeatureWeights const* weights) { +FeatureVector ViterbiFeatures(Hypergraph const& hg,FeatureWeights const* weights,bool fatal_dotprod_disagreement) { FeatureVector r; const prob_t p = Viterbi<FeatureVectorTraversal>(hg, &r); if (weights) { double logp=log(p); double fv=r.dot(*weights); const double EPSILON=1e-5; - if (!close_enough(logp,fv,EPSILON)) - throw std::runtime_error("ViterbiFeatures log prob disagrees with features.dot(weights)"+boost::lexical_cast<string>(logp)+"!="+boost::lexical_cast<string>(fv)); + if (!close_enough(logp,fv,EPSILON)) { + complaint="ViterbiFeatures log prob disagrees with features.dot(weights)"+boost::lexical_cast<string>(logp)+"!="+boost::lexical_cast<string>(fv); + if (fatal_dotprod_disagreement) + throw std::runtime_error(complaint); + else + cerr<<complaint<<endl; + } return r; } diff --git a/decoder/viterbi.h b/decoder/viterbi.h index 7e1e2c0e..4697590b 100644 --- a/decoder/viterbi.h +++ b/decoder/viterbi.h @@ -204,7 +204,7 @@ std::string ViterbiFTree(const Hypergraph& hg); int ViterbiELength(const Hypergraph& hg); int ViterbiPathLength(const Hypergraph& hg); -/// if weights supplied, assert viterbi prob = features.dot(*weights). return features (sum over all edges in viterbi derivation) -FeatureVector ViterbiFeatures(Hypergraph const& hg,FeatureWeights const* weights=0); +/// if weights supplied, assert viterbi prob = features.dot(*weights) (exception if fatal, cerr warn if not). return features (sum over all edges in viterbi derivation) +FeatureVector ViterbiFeatures(Hypergraph const& hg,FeatureWeights const* weights=0,bool fatal_dotprod_disagreement=false); #endif |